Termtter v2.2.0 release on 4/19,2013
Termtter v2.2.0 release on 4/20,2013
Merge pull request #27 from id774/v2.2.0

Termtter v2.2.0 release on 4/20,2013
quick-fix Ruby 1.9
Regenerate gemspec for version 2.2.0